Can Geoengineering “Undo” Climate Change?
Season 47
About the Episode
Discover how geoengineering solutions—from techniques as natural as planting trees, to vacuuming CO2 out of the air, to science-fiction alternatives like blocking sunlight—can help humanity turn the tide on climate change, and why these approaches are controversial.
Aired:
| Expires: | Runtime: 4m 41s
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Extras
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Area 51: UFO Sightings and an Infamous Government Cover-Up
Area 51’s UFO myths became a cover for secret testing of cutting-edge military technology.2:35 -
Is the Government Hiding Information on UFOs?
What does the government know about UFOs? Experts weigh in on the need to identify these objects.1:03 -
The Physics of Breaking, a New Olympic Sport
Here are three moves in breaking, the newest Olympic sport, that appear to defy the laws of physics.1:19 -
Who is the Mystery Man Buried Under Notre Dame?
Can scientists identify the man buried inside a mysterious coffin found under Notre Dame?3:00 -
Dino Birds Preview
Fossils reveal how birds survived the killer asteroid and became today’s only living dinosaurs.0:29 -
Extreme Airport Engineering Preview
Follow the race to build a world-class airport on the site of one of America’s busiest flying hubs.0:30 -
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How Atomic Clocks Keep Perfect Time
Atomic clocks use quantum physics and the resonant frequency of atoms, like cesium, to define time.2:15 -
The Most Baffling Idea in Physics, Explained
Quantum entanglement defies our everyday understanding of reality.3:33 -
What Happens to Your Body During a Speed Eating Competition?
Competitive eaters stretch their stomachs beyond limits. Here’s what happens inside their bodies.5:16
